Pipe stabilizer



FIG. 1 is a top perspective view of a pipe stabilizer showing my newdesign;

FIG. 2 is a front elevation thereof;

FIG. 3 is a side elevation taken from the right of FIG. 1;

FIG. 4 is a bottom view thereof; and

FIG. 5 is a rear elevation thereof.

The ornamental design for a pipe stabilizer, substantially as shown anddescribed.